Ventilating-shoe.



110,853,336. PATBNTBDMAY 14, 1907.

.' M. VILLAGAMPA Y ,VILLAGAMPL VBNTILATING SHOE.

APPLIOATION FILED AUG-- 2.4. 1905.

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UNITED STATES PATENT QFFICE.

VENTILATING-SHOE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed August 24, 1905. Serial No. 275,655.

To a/ZZ 71071/0711, t m/a/y con/cern.-

Be it known that I, MIGUEL VILLACAMPA Y-VILLAOAMPA, a subject ofthe King of Spain, residing at Buenos Ayres, Argentina, have invented certain new and useful Improvements in Ventilating-Shoes, of which the following is a specification.

The present invention relates to means for the interior ventilation of foot-wear.

The apparatus comprises an air suction and compressing device lodged in the inner part of the heel and put into action by the natural impulsion by the foot, when the person is walking, said mechanism being combined with communication-tubes and their valves and with means serving to actuate it.

The apparatus is illustrated in the annexed drawing in which:

Figure l is a vertical longitudinal section of a boot to which the Ventilating apparatus is adapted. Fig, 2 is a view from above of the interior sole. Figs. 3 and 4 are sections on a larger scale of the air suction and compression box and the tubes ending in it, on planes passing through the axes of said tubes.

In the heel A is a cavity B in which is situated a set of levers which at one end is con` nected to a rod F and at the other to a button G; this arrangement is such that when an impulsion causes the rod F slightly to descend, the button G rises for a relatively considerable distance. and connected by means of a link K to the end ot a second lever L pivoted at LI and connected in its turn by means of a link Q to the lever T pivoted at TI.

Level with the upper surface of the heel is a closed box D, the bottom of which consists of a resilient membrane E which projects downward. The button G is, in contact withthe under side of the membrane E so that when the button G ascends the membrane E is pressed inward, into the inner part of the box D, and reduces the volume of the latter and compresses the air contained therein.

Two tubes end in the box D; on the one side is the tube I I1, one end of which is in the box, and the other end communicates with The lever J is pivoted at JI l the outer air through a small opening with which the boot is provided, and on the other side is the tube H one end of which enters the box and the other end is closed at HH; this tube IIpossesses however several oriiices M MI MII MHI M1V by which it communicates with the interior of the boot.

HI designates another tube closed at HII and communicating at HHI with the outer air by means of a small opening arranged in the boot and with the inside of the latter by means of several orifices N YI NH YHI NIV distributed along the tube.

Near its inner end the tube H possesses a valve opening outwardly; the tube I possesses also a valve arranged in inverse sense to the former. Figs. 3 and 4; they are composed of simple disks P and PI of leather or india-rubber and bear on the holes O and OI in the tubes I and H; these disks being xed at one end only.

The rod F is protected on the inside of the boot, by a smooth plate R, so that the foot is not in direct contact with the end of the rod F.

In walking when the foot presses on the heel of the boot, the end of the rod F is automatically pressed downward the button G rises, presses the membrane E and compresses the air contained in the box D; the valve PI of the tube I opens and a certain quantity of air is expelled to the outer air through said tube, and escapes through the opening at I1. When the rear part of the Jfoot is lifted, the rod F rises and the membrane E owing to its elasticity (aided if desired by a spring) returns to its initial position sucking the air from the inside of the boot through the tube H and oriiices M MI M11 Mm MW; the air sucked in is replaced by the air penetrating through the orilices N NI NII NIH NIv of the tube HI and which is sucked in from the outer air through the opening I-IIII owing to the vacuum produced in the interior of the boot.

The tubes H and I and the upper part of the box D are covered by the lining and the insole. The apparatus is visible with the exception of the openings HHI and II whichl however are very small and unnoticeable.

These valves are shown in roo What I clairn is: natural action of the foot in walking, and l In an apparatus for the interior ventllatubes for the circulation of air. l@ tion 0l' footewear the combination 0l' an an1 In Witness whereof I have signed this speck Suction and compressing device arranged in l iication in the presence of two witnesses. 5 the interior of the heel, a foot Operated stud, l 'MIGUEL VILLACAMPA Y VI'LMCAMIHL multiplying system of levers between said l fitnessesz stud and air suction and compressing device MONETY DUVAIN, for increasing the mechanical effect of the l STANLEY C. HARRIS. 

